A bit of work on my 144 MHz power amplifier, i.e. the replacement of the “RF pallet” (by a W6PQL module, using the transistor BLF188XR from NXP) and an update of the Arduino software. The result can be seen on the short video (4 minutes) hereunder. Under 50V / 30A, the amplifier outputs more than 1kW with a drive power of 2,5W…